We have randomly performed R₁₂gastrectomy for 194 cases of resectable gastric carcinoma out of 231 cases during last 6 years.
Five year survival rate according to the UICC-AJC TNM staging system was 91.3% for stage I, 78.7% for stage II, 41.6% for stage III and 0% for stage IV. Five year survival rate according to the new and internationally unified TNM staging was
89.5%
for
stage I(91.3% for stage Ia, 88.4% for stage Ib), 60.7% for stage II, 23% for stage III(58.3% for stage IIIa, 6.0% for stage IIIb) and 0% for stage IV.
With respect to survival rate after R₁₂gastrectomy for resectable gastric carcinoma, it appears that depth of invasion(T ; 87.6% T ; 71.7%, T ; 28.9%, and 3-year survival rate of T ; 35.0%) and degree of nodal metastasis (n; 82.7%. N ; 66.2%, N
;
4.4%) are parameters of prognostic importance.
Type of operation(p<0.005), tumor location(p<0.05), tumor size(p<0.005) and the level of preoperative hemoglobin(p<0.05) are also likely to have prognostic significance.
Among 63 cases of recurrence after R₁₂gastrectomy for 194 cases of resectable gastric carcinoma, 11 cases(4 cases; remnant stomach, 7 cases; regional lymph nod) recurred in locoregional pattern.
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